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// { dg-do compile }

// { dg-options "-Wunused-parameter" }

// Copyright (C) 2003 Free Software Foundation, Inc.

// Contributed by Nathan Sidwell 15 Sep 2003 

// Origin: yotamm@mellanox.co.il

// PR c++/9848. Missing warning

struct C1 {

  // Only use in-charge ctor

  C1(int bi) {}  // { dg-warning "unused parameter" "" }

};

struct C2 {

  // Only use base ctor

  C2(int bi) {}  // { dg-warning "unused parameter" "" }

};

struct D : C2

{

  D (int) : C2 (1) {}

};

void show_compile_warning ()

{

  C1 c1 (1);

  D d (1);

}